<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta charset="UTF-8">
    <title>Hello HTML!</title>
</head>
<body>
<h4>一个嵌套列表：</h4>
<ul>
    <li>咖啡</li>
    <li>茶
        <ul type="square">
            <li>红茶</li>
            <li>绿茶</li>
        </ul>
    </li>
    <li>牛奶</li>
</ul>
</body>
</html>
